I’m not saying that aliens will think/act like us because of some humanistic egotism. It’s because the Universe is made up of all the same stuff. It all follows all of the same laws. These laws guide things in the universe to be similar: There are galaxies like ours. There are solar systems like ours. There are planets like ours. There are environments like the environments on earth. Take the same elements, governed by the same laws, in the same environments, and you can reasonably assume that there will be similar results. If I pour some vinnegar in some baking soda, I can reasonably assume that it will always fizz. Because it always does.
No, I don’t think aliens will look like us. They won’t have skinny bodies with big heads and big eyes. But I do believe that evolution will find the path of least resistance, and “curiosity” and “exploration” are part of our brains for a reason. Perhaps they are a requirement for life itself… you know, to ensure your existence. Wouldn’t any intelligent being consider expansion and exploration part of its duty to preserve its existence?
THAT is why I think aliens are out there looking. Not because I want to feel special – but because the universe itself demands it of them. They aren’t out there looking for us specifically.. they’re just looking.